| AUTOMOTIVE | OFFICE AUTOMATION | |
| ASTEMO AYUTTAHAYA LIMITED | CANON HI-TECH (THAILAND)CO.,LTD | |
| ASTEMO SANLUIS POTOSI S.A.de C.V. | CANON PRACHINBURI(THAILAND)CO.,LTD | |
| ASTEMO LAMPHUN LIMITED | SUMIRIKO CHEMICAL AND PLASTIC PRODUCTS(THAILAND) LTD. | |
| ASTEMO SYSTEM AMERICAS,. | OKI DATA MANUFACTURING(THAILAND)CO.,LTD | |
| MIKUNI (THAILAND)CO.,LTD | PRESS CRAFT (THAILAND) CO.,LTD. | |
| KOMATSU SEIKI (THAILAND) CO.,LTD | ||
| DAIDO ELECTRONICS(THAILAND)CO.,LTD. | OTHER | |
| NIDEC POWERTRAIN SYSTEMS (VIETNAM) CO., LTD | TOSTEM THAI LIMITED | |
| YAMASEI THAI CO.,LTD | SIAM ETO LIMITED | |
| SANSHIN HIGH TECHNOLOGY (THAILAND) LTD. | SEIKITSU (THAILAND) LTD | |
| NACHI(JIANGSI) INDUSTRIES | UNION SEIMITSU (THAILAND)LIMITED | |
| SANWA TECHNOGOGIES (THAILAND | ||
| CAMERA | ||
| NIKON(THAILAND)CO.,LTD | ||
| BANGKOK SANYO SPRING CO.,LTD. |
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